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Taxonomy
Morphology
Growth conditions
Biochemical characters
Ecology
Pathogenicity
References
Bacteria => Firmicutes => Bacilli => Bacillales => Bacillaceae => Bacillus => Paenibacillus polymyxa (Prazmowski 1880) Ash et al.
1994
Old synonyms: Clostridium polymyxa Prazmowski 1880, Granulobacter polymyxa (Prazmowsky) Beijerinck 1893, Aerobacillus
polymyxa (Prazmowsky) Donker 1926, Bacillus polymyxa (Prazmowsky) Mace 1889, Astasia asterospora Meyer 1897, Bacillus
asterosporus (Meyer) Migula 1900, Aerobacillus asterosporus (Meyer) Donker 1926, Bacillus aerosporus Greer 1928.
1994
Old synonyms: Clostridium polymyxa Prazmowski 1880, Granulobacter polymyxa (Prazmowsky) Beijerinck 1893, Aerobacillus
polymyxa (Prazmowsky) Donker 1926, Bacillus polymyxa (Prazmowsky) Mace 1889, Astasia asterospora Meyer 1897, Bacillus
asterosporus (Meyer) Migula 1900, Aerobacillus asterosporus (Meyer) Donker 1926, Bacillus aerosporus Greer 1928.
2,0-5,0/0,6-0,8 μm, motile, peritrichous flagella
Gram-positive, Gram-variable or Gram-negative
Spores: ellipsoidal, central, subterminal or terminal; swelling the sporangia
Gram-positive, Gram-variable or Gram-negative
Spores: ellipsoidal, central, subterminal or terminal; swelling the sporangia
Aerobic, facultative anaerobic.Growth temperature from 5-10 ºC to 35-45 ºC.
Colonies on nutrient agar thin; often with amoeboid spreading. On glucose agar
usually heaped, mucoid with matt surface. Adherent to agar medium.
Growth at pH 5.7
No growth in 7 percent NaCl.
Colonies on nutrient agar thin; often with amoeboid spreading. On glucose agar
usually heaped, mucoid with matt surface. Adherent to agar medium.
Growth at pH 5.7
No growth in 7 percent NaCl.
Spores widespread. Multiplication chiefly in decomposing vegetation. Antibiotic producer („polymyxin”).
Unknown (none).
- Bîlbîie V., Pozsgi N., 1985, Bacteriologie Medicală, vol.ll, Ed. Medicală, Bucureşti.
- Gordon R.E., Haynes W.C., Pang C.H. (1973) – The genus Bacillus . Agriculture Handbook No. 427, U.S.D.A., Washington D.C.
- Buchanan R.E., Gibbons N.E., Cowan S.T., Holt J.G., Liston J., Murray R.G.E., Niven C.F., Ravin A.W., Stanier R.W. ( 1974) –
Bergey’s Manual of Determinative Bacteriology, Eight Edition, The Williams & Wilkins Company, Baltimore. - Răducănescu H., Valeria Bica-Popii, 1986, Bacteriologie veterinară, Ed. Ceres, Bucureşti.
Catalase +
Voges-Proskauer +
Acid and gas from glucose +, xylose +, arabinose+ and mannitol +
Hydrolysis of starch+
Utilization of citrate as a source of carbon -
Decomposition of casein +
Indole –
Gelatin liquefaction+
Reduction of nitrate to nitrite +
Levan formed from sucrose; accumulates in large capsules , not in sorrounding
medium.
Voges-Proskauer +
Acid and gas from glucose +, xylose +, arabinose+ and mannitol +
Hydrolysis of starch+
Utilization of citrate as a source of carbon -
Decomposition of casein +
Indole –
Gelatin liquefaction+
Reduction of nitrate to nitrite +
Levan formed from sucrose; accumulates in large capsules , not in sorrounding
medium.
(c) Costin Stoica
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